/*
 * Copyright [2025] [Harbortek Corp.]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.harbortek.helm.util;

public class ChineseStringUtils {

    public static String normalize(String s){
        if (s == null) {
            return null;
        }
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < s.length(); i++) {
            if((""+s.charAt(i)).matches("[\u4e00-\u9fa50-9a-zA-Z\\-]+")){
                sb.append(s.charAt(i));
            }
        }
        return sb.toString();
    }


}
